OL DAC The Objective Line began as an opensource amp design by blogger NwAvGuy. Through years of customer feedback, we've engineered several amps and DACs along the same technical philosophy and design spirit. OL DAC is fundamentally the best value brought to the series, and stacks with Objective2 and/or OL Switcher to form a versatile listening center.

Standalone ODAC, Rev B The Standalone ODAC is a reference grade digital-to-analog converter designed by NwAvGuy and YoyoDyne Consulting. ODAC can be paired with any headphone amplifier, pre-amplifier, or stereo system.

C5 Headphone Amplifier C5 is built for portable users who need a small amp with USB recharging, exceptionally low noise, sufficient output power, long battery life, and most importantly, a super fine volume control to handle sensitive headphones and IEMs.

Slip-on 3.5mm Barrel Adapter Converts a standard 5.5mm DC plug to the 3.5mm size used by the cMoyBB v2.03. Slips on and off by hand, no soldering required. Economical way to use an existing power adapter!

Objective2 Printed Circuit Board Bare printed circuit board for the Objective2 headphone amplifier. PCB is electrically tested! Objective2 is an open source amplifier designed by NwAvGuy, with emphasis on benchmark performance and low cost.

Objective2 Assembled PCB Ready to use Objective2 headphone amplifier circuit board. Objective2 is an open source amplifier designed by NwAvGuy, with emphasis on benchmark performance and low cost. Enclosure, knob, and AC adapter not included.

Mini-USB Cable A premium mini B USB cable. Gold plated connectors and ferrite core reject noise and ensure clean power and data delivery. Recommended for use with DACs and other devices sensitive to noise.

Machined Objective2 Rear Plate - RCA and AC Jacks Alternative rear endplate for the Objective2 headphone amplifier. This modification moves Objective2's power jack to the rear side of the enclosure; the front 3.5mm jack is replaced with rear RCA jacks.